Supplier Page from Thermo Fisher Scientific for Nitric acid, extra pure, 60% solution in water
2-Ethylhexanoic acid, 99% from Thermo Fisher Scientific
Ethyl 2-oxocyclohexanecarboxylate, 95% from Thermo Fisher Scientific
Eugenol, 99% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific